Halide, uranium-bearing mineral
Specific gravity: 4.038 calculated
Hardness: About 1½
Streak: Very pale yellow
Luminescence: Bright green–white fluorescence under 405 nm UV
Solubility: Soluble in water
Uranoclite is a new mineral approved in 2021, and to date (April 2022) reported only from the type locality.
At the type locality, the Blue Lizard mine, Red Canyon Mining District, San Juan County, Utah, USA, uranoclite occurs as tightly intergrown aggregates of irregular yellow crystals in a secondary assemblage with gypsum (MM 85.3.438-443).
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